Special Report: De Grey’s extensional and infill drilling continues to rack up gold hits ahead of an initial resource estimate for the Hemi discovery in mid-2021.

Drilling at the Aquila zone has extended the western plunging shoot by a further 80m while new potential lodes have also been intersected along strike and down dip along the zone.

Meanwhile, mineralisation at the Crow zone continues to be defined with infill drilling that returned results of up to 1m at 358 grams per tonne (g/t) gold from 105m that marks the start of a broader 5m intersection grading 72.9g/t gold.

De Grey Mining (ASX:DEG) technical director Andy Beckwith says the cluster of high grade hits from infill drilling at Crow is a demonstration of the strong gold endowment in potential new sub-vertical lodes.

“The plunging high grade zone at Aquila continues to grow to the west and downdip toward Falcon. Mineralisation at Aquila and Crow has been intersected to approximately 500 vertical metres and remains open,” he added.

Extensional step out drilling in these two zones is continuing at a nominal 80m by 80m spacing while the ongoing infill drilling at all Hemi zones is aimed at enabling a robust resource estimate with a high level of material in the indicated category.

Indicated resources have sufficient information on geology and grade continuity to support mine planning.

The company had previously noted that infill drilling at the Brolga zone has already demonstrated remarkable consistency within holes and strong continuity of mineralisation between holes.

De Grey mining drilling results
Drilling location plan showing the new Aquila and Crow drilling results Pic: Supplied

Gold drilling details

At the Aquila zone, significant results are 38.4m at 3.2g/t gold from 205.05m, 53m at 1.2g/t gold from 165m and 68m at 1.2g/t gold from 136m.

The extended western plunging shoot remains open to the west and down dip while the new potential lodes include a broad deeper zone of sulphide rich mineralisation about 180m below previously defined mineralisation.

At Crow, a cluster of high-grade results occur over a strike of about 240m that correlates to an area of strong alteration and includes the previously reported 64m at 13.4g/t hit from 141m.

Infill drilling around this high-grade zone has also intersected further encouraging +2g/t gold mineralisation.

New potential lodes and extensions have also been intersected along strike and down dip within the Crow intrusion with mineralisation remaining open at multiple localities.


This article was developed in collaboration with De Grey Mining, a Stockhead advertiser at the time of publishing.


This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.